“…The former tend to be insufficiently adapted to context and therefore often show patchy results, while the latter lack scale and impact on the broader environment or system. Collaboration and networking are seen as having specific advantages for school improvement, which include allowing schools to pool resources and improve the provision of professional development (Lieberman, 2000), allowing schools to plug 'structural gaps' in their own expertise and skills (Muijs, West & Ainscow, 2010), and allowing them to develop mutual support mechanisms and overcome an overly inward-looking approach (Wohlstetter, Malloy, Chau & Polhemus, 2003). Collaboration between schools also allows them to take ownership of the change process, which is often a problem in large-scale reform efforts (Muis et al, 2010).…”